Steerable medical probe with stylets

Details Steerable medical probe with stylets Steerable medical probe with stylets

1995-04-11

1996-07-02

Maglione, Corrine M.

Surgery

Means for introducing or removing material from body for...

With means for cutting, scarifying, or vibrating tissue

604164, 606 47, 607113, 607101, A61B 1720

Patent

active

055316778

ABSTRACT:
A medical probe for the treatment by radio frequency ablation of a target volume in tissue of a human having a urethral channel extending into the base of a bladder along a longitudinal axis. The probe comprises an elongate probe member having proximal and distal extremities and is sized so that it can be introduced into the urethra. The elongate probe member has a passage extending from the proximal extremity to the distal extremity. Guide cannulae are mounted in the passage of the elongate probe member and have proximal and distal extremities with the distal extremities of the guide cannulae being in the vicinity of the distal extremity of the elongate probe member. Each of the guide cannulae have a lumen extending therethrough from the proximal extremity to the distal extremity. A radio frequency conductive electrode is disposed in each lumen. An insulating sleeve is coaxially disposed on each radio frequency electrode. A control handle is secured to the proximal extremity of the elongate probe member. The control handle is connected to each radio frequency electrode and each insulating sleeve so that each radio frequency electrode and each insulating sleeve can be advanced and retracted.

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